161719180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{11437}}^1$

素因数の和:11554

約数の個数: 48

約数和(自身を含む): 392003136

約数和(自身を除く): 230283956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 11437, 14140, 22874, 45748, 57185, 80059, 114370, 160118, 228740, 320236, 400295, 800590, 1155137, 1601180, 2310274, 4620548, 5775685, 8085959, 11551370, 16171918, 23102740, 32343836, 40429795, 80859590, 161719180]

約数ペア:

[(1, 161719180), (2, 80859590), (4, 40429795), (5, 32343836), (7, 23102740), (10, 16171918), (14, 11551370), (20, 8085959), (28, 5775685), (35, 4620548), (70, 2310274), (101, 1601180), (140, 1155137), (202, 800590), (404, 400295), (505, 320236), (707, 228740), (1010, 160118), (1414, 114370), (2020, 80059), (2828, 57185), (3535, 45748), (7070, 22874), (11437, 14140)]